ENS 48564
ENS Event | |
|---|---|
05:00 Dec 6, 2012 | |
| Title | Esi Refurbished Emergency Diesel Generator Cylinder Head with Foreign Material in Intake Port |
| Event Description | The following information is a summary of a Part 21 Report from Engine Systems, Inc. (ESI) concerning a condition reportable under 10 CFR 21.
ESI reports that they received notification about foreign material found within a refurbished cylinder head supplied to the Cooper Nuclear Station by ESI. Specifically, Cooper discovered two hand tools (picks) within the intake port on the cylinder head. The tools were discovered by Cooper after installation of the head onto the diesel engine and while attempting to adjust the intake valve backlash. ESI supplied the refurbished cylinder head for a Cooper-Bessemer KSV engine to Cooper Nuclear Station (Part Number 13-KSV-11-6, Serial Number 6K2201) in August 2010. The refurbishment activity was performed at the Cameron Compression (OEM) facility in Casper, Wyoming. The most likely scenario is that the cylinder head was oriented with the inlet port facing up during installation of the valve spring keeper seals. After installation of the seals, the tools were placed on top of the cylinder head. It is presumed the tools fell into the inlet port and settled in the intake valve seating area. The tools are small in size (approximately 5 inches long with a 5/8 inch handle) and were not visible from the exterior of the head. ESI considers this occurrence to be an isolated incident and that Cooper Nuclear Station is the only affected customer. Previous shipments of similar cylinder heads are not suspect. |
| Where | |
|---|---|
| Engine Systems, Inc Rocky Mount, North Carolina (NRC Region 1) | |
| Organization: | Engine Systems, Inc |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+6.02 h0.251 days <br />0.0358 weeks <br />0.00825 months <br />) | |
| Opened: | Tom Horner 11:01 Dec 6, 2012 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Dec 6, 2012 |
| 48564 - NRC Website | |
Engine Systems, Inc with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 565382023-03-28T04:00:00028 March 2023 04:00:00
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